Physics · Power Electronics
What is the primary function of a large capacitor connected across the DC bus in a voltage source inverter (VSI)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1It minimizes the source current ripple during high frequency operations.
- 2It maintains a stable, constant voltage across the DC link.✓
- 3It protects against thyristor overvoltage failure.
- 4It provides a low impedance path for high frequency components in the DC link current.
Correct answer
It maintains a stable, constant voltage across the DC link.
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